diff options
Diffstat (limited to 'drivers/media/video/omap3isp/ispcsi2.c')
| -rw-r--r-- | drivers/media/video/omap3isp/ispcsi2.c | 1305 |
1 files changed, 0 insertions, 1305 deletions
diff --git a/drivers/media/video/omap3isp/ispcsi2.c b/drivers/media/video/omap3isp/ispcsi2.c deleted file mode 100644 index a1724362b6d5..000000000000 --- a/drivers/media/video/omap3isp/ispcsi2.c +++ /dev/null @@ -1,1305 +0,0 @@ -/* - * ispcsi2.c - * - * TI OMAP3 ISP - CSI2 module - * - * Copyright (C) 2010 Nokia Corporation - * Copyright (C) 2009 Texas Instruments, Inc. - * - * Contacts: Laurent Pinchart <laurent.pinchart@ideasonboard.com> - * Sakari Ailus <sakari.ailus@iki.fi> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ -#include <linux/delay.h> -#include <media/v4l2-common.h> -#include <linux/v4l2-mediabus.h> -#include <linux/mm.h> - -#include "isp.h" -#include "ispreg.h" -#include "ispcsi2.h" - -/* - * csi2_if_enable - Enable CSI2 Receiver interface. - * @enable: enable flag - * - */ -static void csi2_if_enable(struct isp_device *isp, - struct isp_csi2_device *csi2, u8 enable) -{ - struct isp_csi2_ctrl_cfg *currctrl = &csi2->ctrl; - - isp_reg_clr_set(isp, csi2->regs1, ISPCSI2_CTRL, ISPCSI2_CTRL_IF_EN, - enable ? ISPCSI2_CTRL_IF_EN : 0); - - currctrl->if_enable = enable; -} - -/* - * csi2_recv_config - CSI2 receiver module configuration. - * @currctrl: isp_csi2_ctrl_cfg structure - * - */ -static void csi2_recv_config(struct isp_device *isp, - struct isp_csi2_device *csi2, - struct isp_csi2_ctrl_cfg *currctrl) -{ - u32 reg; - - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTRL); - - if (currctrl->frame_mode) - reg |= ISPCSI2_CTRL_FRAME; - else - reg &= ~ISPCSI2_CTRL_FRAME; - - if (currctrl->vp_clk_enable) - reg |= ISPCSI2_CTRL_VP_CLK_EN; - else - reg &= ~ISPCSI2_CTRL_VP_CLK_EN; - - if (currctrl->vp_only_enable) - reg |= ISPCSI2_CTRL_VP_ONLY_EN; - else - reg &= ~ISPCSI2_CTRL_VP_ONLY_EN; - - reg &= ~ISPCSI2_CTRL_VP_OUT_CTRL_MASK; - reg |= currctrl->vp_out_ctrl << ISPCSI2_CTRL_VP_OUT_CTRL_SHIFT; - - if (currctrl->ecc_enable) - reg |= ISPCSI2_CTRL_ECC_EN; - else - reg &= ~ISPCSI2_CTRL_ECC_EN; - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTRL); -} - -static const unsigned int csi2_input_fmts[] = { - V4L2_MBUS_FMT_SGRBG10_1X10, - V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8, - V4L2_MBUS_FMT_SRGGB10_1X10, - V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8, - V4L2_MBUS_FMT_SBGGR10_1X10, - V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8, - V4L2_MBUS_FMT_SGBRG10_1X10, - V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8, -}; - -/* To set the format on the CSI2 requires a mapping function that takes - * the following inputs: - * - 2 different formats (at this time) - * - 2 destinations (mem, vp+mem) (vp only handled separately) - * - 2 decompression options (on, off) - * - 2 isp revisions (certain format must be handled differently on OMAP3630) - * Output should be CSI2 frame format code - * Array indices as follows: [format][dest][decompr][is_3630] - * Not all combinations are valid. 0 means invalid. - */ -static const u16 __csi2_fmt_map[2][2][2][2] = { - /* RAW10 formats */ - { - /* Output to memory */ - { - /* No DPCM decompression */ - { CSI2_PIX_FMT_RAW10_EXP16, CSI2_PIX_FMT_RAW10_EXP16 }, - /* DPCM decompression */ - { 0, 0 }, - }, - /* Output to both */ - { - /* No DPCM decompression */ - { CSI2_PIX_FMT_RAW10_EXP16_VP, - CSI2_PIX_FMT_RAW10_EXP16_VP }, - /* DPCM decompression */ - { 0, 0 }, - }, - }, - /* RAW10 DPCM8 formats */ - { - /* Output to memory */ - { - /* No DPCM decompression */ - { CSI2_PIX_FMT_RAW8, CSI2_USERDEF_8BIT_DATA1 }, - /* DPCM decompression */ - { CSI2_PIX_FMT_RAW8_DPCM10_EXP16, - CSI2_USERDEF_8BIT_DATA1_DPCM10 }, - }, - /* Output to both */ - { - /* No DPCM decompression */ - { CSI2_PIX_FMT_RAW8_VP, - CSI2_PIX_FMT_RAW8_VP }, - /* DPCM decompression */ - { CSI2_PIX_FMT_RAW8_DPCM10_VP, - CSI2_USERDEF_8BIT_DATA1_DPCM10_VP }, - }, - }, -}; - -/* - * csi2_ctx_map_format - Map CSI2 sink media bus format to CSI2 format ID - * @csi2: ISP CSI2 device - * - * Returns CSI2 physical format id - */ -static u16 csi2_ctx_map_format(struct isp_csi2_device *csi2) -{ - const struct v4l2_mbus_framefmt *fmt = &csi2->formats[CSI2_PAD_SINK]; - int fmtidx, destidx, is_3630; - - switch (fmt->code) { - case V4L2_MBUS_FMT_SGRBG10_1X10: - case V4L2_MBUS_FMT_SRGGB10_1X10: - case V4L2_MBUS_FMT_SBGGR10_1X10: - case V4L2_MBUS_FMT_SGBRG10_1X10: - fmtidx = 0; - break; - case V4L2_MBUS_FMT_SGRBG10_DPCM8_1X8: - case V4L2_MBUS_FMT_SRGGB10_DPCM8_1X8: - case V4L2_MBUS_FMT_SBGGR10_DPCM8_1X8: - case V4L2_MBUS_FMT_SGBRG10_DPCM8_1X8: - fmtidx = 1; - break; - default: - WARN(1, KERN_ERR "CSI2: pixel format %08x unsupported!\n", - fmt->code); - return 0; - } - - if (!(csi2->output & CSI2_OUTPUT_CCDC) && - !(csi2->output & CSI2_OUTPUT_MEMORY)) { - /* Neither output enabled is a valid combination */ - return CSI2_PIX_FMT_OTHERS; - } - - /* If we need to skip frames at the beginning of the stream disable the - * video port to avoid sending the skipped frames to the CCDC. - */ - destidx = csi2->frame_skip ? 0 : !!(csi2->output & CSI2_OUTPUT_CCDC); - is_3630 = csi2->isp->revision == ISP_REVISION_15_0; - - return __csi2_fmt_map[fmtidx][destidx][csi2->dpcm_decompress][is_3630]; -} - -/* - * csi2_set_outaddr - Set memory address to save output image - * @csi2: Pointer to ISP CSI2a device. - * @addr: ISP MMU Mapped 32-bit memory address aligned on 32 byte boundary. - * - * Sets the memory address where the output will be saved. - * - * Returns 0 if successful, or -EINVAL if the address is not in the 32 byte - * boundary. - */ -static void csi2_set_outaddr(struct isp_csi2_device *csi2, u32 addr) -{ - struct isp_device *isp = csi2->isp; - struct isp_csi2_ctx_cfg *ctx = &csi2->contexts[0]; - - ctx->ping_addr = addr; - ctx->pong_addr = addr; - isp_reg_writel(isp, ctx->ping_addr, - csi2->regs1, ISPCSI2_CTX_DAT_PING_ADDR(ctx->ctxnum)); - isp_reg_writel(isp, ctx->pong_addr, - csi2->regs1, ISPCSI2_CTX_DAT_PONG_ADDR(ctx->ctxnum)); -} - -/* - * is_usr_def_mapping - Checks whether USER_DEF_MAPPING should - * be enabled by CSI2. - * @format_id: mapped format id - * - */ -static inline int is_usr_def_mapping(u32 format_id) -{ - return (format_id & 0x40) ? 1 : 0; -} - -/* - * csi2_ctx_enable - Enable specified CSI2 context - * @ctxnum: Context number, valid between 0 and 7 values. - * @enable: enable - * - */ -static void csi2_ctx_enable(struct isp_device *isp, - struct isp_csi2_device *csi2, u8 ctxnum, u8 enable) -{ - struct isp_csi2_ctx_cfg *ctx = &csi2->contexts[ctxnum]; - unsigned int skip = 0; - u32 reg; - - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL1(ctxnum)); - - if (enable) { - if (csi2->frame_skip) - skip = csi2->frame_skip; - else if (csi2->output & CSI2_OUTPUT_MEMORY) - skip = 1; - - reg &= ~ISPCSI2_CTX_CTRL1_COUNT_MASK; - reg |= ISPCSI2_CTX_CTRL1_COUNT_UNLOCK - | (skip << ISPCSI2_CTX_CTRL1_COUNT_SHIFT) - | ISPCSI2_CTX_CTRL1_CTX_EN; - } else { - reg &= ~ISPCSI2_CTX_CTRL1_CTX_EN; - } - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL1(ctxnum)); - ctx->enabled = enable; -} - -/* - * csi2_ctx_config - CSI2 context configuration. - * @ctx: context configuration - * - */ -static void csi2_ctx_config(struct isp_device *isp, - struct isp_csi2_device *csi2, - struct isp_csi2_ctx_cfg *ctx) -{ - u32 reg; - - /* Set up CSI2_CTx_CTRL1 */ - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL1(ctx->ctxnum)); - - if (ctx->eof_enabled) - reg |= ISPCSI2_CTX_CTRL1_EOF_EN; - else - reg &= ~ISPCSI2_CTX_CTRL1_EOF_EN; - - if (ctx->eol_enabled) - reg |= ISPCSI2_CTX_CTRL1_EOL_EN; - else - reg &= ~ISPCSI2_CTX_CTRL1_EOL_EN; - - if (ctx->checksum_enabled) - reg |= ISPCSI2_CTX_CTRL1_CS_EN; - else - reg &= ~ISPCSI2_CTX_CTRL1_CS_EN; - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL1(ctx->ctxnum)); - - /* Set up CSI2_CTx_CTRL2 */ - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL2(ctx->ctxnum)); - - reg &= ~(ISPCSI2_CTX_CTRL2_VIRTUAL_ID_MASK); - reg |= ctx->virtual_id << ISPCSI2_CTX_CTRL2_VIRTUAL_ID_SHIFT; - - reg &= ~(ISPCSI2_CTX_CTRL2_FORMAT_MASK); - reg |= ctx->format_id << ISPCSI2_CTX_CTRL2_FORMAT_SHIFT; - - if (ctx->dpcm_decompress) { - if (ctx->dpcm_predictor) - reg |= ISPCSI2_CTX_CTRL2_DPCM_PRED; - else - reg &= ~ISPCSI2_CTX_CTRL2_DPCM_PRED; - } - - if (is_usr_def_mapping(ctx->format_id)) { - reg &= ~ISPCSI2_CTX_CTRL2_USER_DEF_MAP_MASK; - reg |= 2 << ISPCSI2_CTX_CTRL2_USER_DEF_MAP_SHIFT; - } - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL2(ctx->ctxnum)); - - /* Set up CSI2_CTx_CTRL3 */ - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_CTRL3(ctx->ctxnum)); - reg &= ~(ISPCSI2_CTX_CTRL3_ALPHA_MASK); - reg |= (ctx->alpha << ISPCSI2_CTX_CTRL3_ALPHA_SHIFT); - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_CTX_CTRL3(ctx->ctxnum)); - - /* Set up CSI2_CTx_DAT_OFST */ - reg = isp_reg_readl(isp, csi2->regs1, - ISPCSI2_CTX_DAT_OFST(ctx->ctxnum)); - reg &= ~ISPCSI2_CTX_DAT_OFST_OFST_MASK; - reg |= ctx->data_offset << ISPCSI2_CTX_DAT_OFST_OFST_SHIFT; - isp_reg_writel(isp, reg, csi2->regs1, - ISPCSI2_CTX_DAT_OFST(ctx->ctxnum)); - - isp_reg_writel(isp, ctx->ping_addr, - csi2->regs1, ISPCSI2_CTX_DAT_PING_ADDR(ctx->ctxnum)); - - isp_reg_writel(isp, ctx->pong_addr, - csi2->regs1, ISPCSI2_CTX_DAT_PONG_ADDR(ctx->ctxnum)); -} - -/* - * csi2_timing_config - CSI2 timing configuration. - * @timing: csi2_timing_cfg structure - */ -static void csi2_timing_config(struct isp_device *isp, - struct isp_csi2_device *csi2, - struct isp_csi2_timing_cfg *timing) -{ - u32 reg; - - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_TIMING); - - if (timing->force_rx_mode) - reg |= ISPCSI2_TIMING_FORCE_RX_MODE_IO(timing->ionum); - else - reg &= ~ISPCSI2_TIMING_FORCE_RX_MODE_IO(timing->ionum); - - if (timing->stop_state_16x) - reg |= ISPCSI2_TIMING_STOP_STATE_X16_IO(timing->ionum); - else - reg &= ~ISPCSI2_TIMING_STOP_STATE_X16_IO(timing->ionum); - - if (timing->stop_state_4x) - reg |= ISPCSI2_TIMING_STOP_STATE_X4_IO(timing->ionum); - else - reg &= ~ISPCSI2_TIMING_STOP_STATE_X4_IO(timing->ionum); - - reg &= ~ISPCSI2_TIMING_STOP_STATE_COUNTER_IO_MASK(timing->ionum); - reg |= timing->stop_state_counter << - ISPCSI2_TIMING_STOP_STATE_COUNTER_IO_SHIFT(timing->ionum); - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_TIMING); -} - -/* - * csi2_irq_ctx_set - Enables CSI2 Context IRQs. - * @enable: Enable/disable CSI2 Context interrupts - */ -static void csi2_irq_ctx_set(struct isp_device *isp, - struct isp_csi2_device *csi2, int enable) -{ - int i; - - for (i = 0; i < 8; i++) { - isp_reg_writel(isp, ISPCSI2_CTX_IRQSTATUS_FE_IRQ, csi2->regs1, - ISPCSI2_CTX_IRQSTATUS(i)); - if (enable) - isp_reg_set(isp, csi2->regs1, ISPCSI2_CTX_IRQENABLE(i), - ISPCSI2_CTX_IRQSTATUS_FE_IRQ); - else - isp_reg_clr(isp, csi2->regs1, ISPCSI2_CTX_IRQENABLE(i), - ISPCSI2_CTX_IRQSTATUS_FE_IRQ); - } -} - -/* - * csi2_irq_complexio1_set - Enables CSI2 ComplexIO IRQs. - * @enable: Enable/disable CSI2 ComplexIO #1 interrupts - */ -static void csi2_irq_complexio1_set(struct isp_device *isp, - struct isp_csi2_device *csi2, int enable) -{ - u32 reg; - reg = ISPCSI2_PHY_IRQENABLE_STATEALLULPMEXIT | - ISPCSI2_PHY_IRQENABLE_STATEALLULPMENTER | - ISPCSI2_PHY_IRQENABLE_STATEULPM5 | - ISPCSI2_PHY_IRQENABLE_ERRCONTROL5 | - ISPCSI2_PHY_IRQENABLE_ERRESC5 | - ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS5 | - ISPCSI2_PHY_IRQENABLE_ERRSOTHS5 | - ISPCSI2_PHY_IRQENABLE_STATEULPM4 | - ISPCSI2_PHY_IRQENABLE_ERRCONTROL4 | - ISPCSI2_PHY_IRQENABLE_ERRESC4 | - ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS4 | - ISPCSI2_PHY_IRQENABLE_ERRSOTHS4 | - ISPCSI2_PHY_IRQENABLE_STATEULPM3 | - ISPCSI2_PHY_IRQENABLE_ERRCONTROL3 | - ISPCSI2_PHY_IRQENABLE_ERRESC3 | - ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS3 | - ISPCSI2_PHY_IRQENABLE_ERRSOTHS3 | - ISPCSI2_PHY_IRQENABLE_STATEULPM2 | - ISPCSI2_PHY_IRQENABLE_ERRCONTROL2 | - ISPCSI2_PHY_IRQENABLE_ERRESC2 | - ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS2 | - ISPCSI2_PHY_IRQENABLE_ERRSOTHS2 | - ISPCSI2_PHY_IRQENABLE_STATEULPM1 | - ISPCSI2_PHY_IRQENABLE_ERRCONTROL1 | - ISPCSI2_PHY_IRQENABLE_ERRESC1 | - ISPCSI2_PHY_IRQENABLE_ERRSOTSYNCHS1 | - ISPCSI2_PHY_IRQENABLE_ERRSOTHS1; - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_PHY_IRQSTATUS); - if (enable) - reg |= isp_reg_readl(isp, csi2->regs1, ISPCSI2_PHY_IRQENABLE); - else - reg = 0; - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_PHY_IRQENABLE); -} - -/* - * csi2_irq_status_set - Enables CSI2 Status IRQs. - * @enable: Enable/disable CSI2 Status interrupts - */ -static void csi2_irq_status_set(struct isp_device *isp, - struct isp_csi2_device *csi2, int enable) -{ - u32 reg; - reg = ISPCSI2_IRQSTATUS_OCP_ERR_IRQ | - ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ | - ISPCSI2_IRQSTATUS_ECC_CORRECTION_IRQ | - ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ | - ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ | - ISPCSI2_IRQSTATUS_COMPLEXIO1_ERR_IRQ | - ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ | - ISPCSI2_IRQSTATUS_CONTEXT(0); - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_IRQSTATUS); - if (enable) - reg |= isp_reg_readl(isp, csi2->regs1, ISPCSI2_IRQENABLE); - else - reg = 0; - - isp_reg_writel(isp, reg, csi2->regs1, ISPCSI2_IRQENABLE); -} - -/* - * omap3isp_csi2_reset - Resets the CSI2 module. - * - * Must be called with the phy lock held. - * - * Returns 0 if successful, or -EBUSY if power command didn't respond. - */ -int omap3isp_csi2_reset(struct isp_csi2_device *csi2) -{ - struct isp_device *isp = csi2->isp; - u8 soft_reset_retries = 0; - u32 reg; - int i; - - if (!csi2->available) - return -ENODEV; - - if (csi2->phy->phy_in_use) - return -EBUSY; - - isp_reg_set(isp, csi2->regs1, ISPCSI2_SYSCONFIG, - ISPCSI2_SYSCONFIG_SOFT_RESET); - - do { - reg = isp_reg_readl(isp, csi2->regs1, ISPCSI2_SYSSTATUS) & - ISPCSI2_SYSSTATUS_RESET_DONE; - if (reg == ISPCSI2_SYSSTATUS_RESET_DONE) - break; - soft_reset_retries++; - if (soft_reset_retries < 5) - udelay(100); - } while (soft_reset_retries < 5); - - if (soft_reset_retries == 5) { - printk(KERN_ERR "CSI2: Soft reset try count exceeded!\n"); - return -EBUSY; - } - - if (isp->revision == ISP_REVISION_15_0) - isp_reg_set(isp, csi2->regs1, ISPCSI2_PHY_CFG, - ISPCSI2_PHY_CFG_RESET_CTRL); - - i = 100; - do { - reg = isp_reg_readl(isp, csi2->phy->phy_regs, ISPCSIPHY_REG1) - & ISPCSIPHY_REG1_RESET_DONE_CTRLCLK; - if (reg == ISPCSIPHY_REG1_RESET_DONE_CTRLCLK) - break; - udelay(100); - } while (--i > 0); - - if (i == 0) { - printk(KERN_ERR - "CSI2: Reset for CSI2_96M_FCLK domain Failed!\n"); - return -EBUSY; - } - - if (isp->autoidle) - isp_reg_clr_set(isp, csi2->regs1, ISPCSI2_SYSCONFIG, - ISPCSI2_SYSCONFIG_MSTANDBY_MODE_MASK | - ISPCSI2_SYSCONFIG_AUTO_IDLE, - ISPCSI2_SYSCONFIG_MSTANDBY_MODE_SMART | - ((isp->revision == ISP_REVISION_15_0) ? - ISPCSI2_SYSCONFIG_AUTO_IDLE : 0)); - else - isp_reg_clr_set(isp, csi2->regs1, ISPCSI2_SYSCONFIG, - ISPCSI2_SYSCONFIG_MSTANDBY_MODE_MASK | - ISPCSI2_SYSCONFIG_AUTO_IDLE, - ISPCSI2_SYSCONFIG_MSTANDBY_MODE_NO); - - return 0; -} - -static int csi2_configure(struct isp_csi2_device *csi2) -{ - const struct isp_v4l2_subdevs_group *pdata; - struct isp_device *isp = csi2->isp; - struct isp_csi2_timing_cfg *timing = &csi2->timing[0]; - struct v4l2_subdev *sensor; - struct media_pad *pad; - - /* - * CSI2 fields that can be updated while the context has - * been enabled or the interface has been enabled are not - * updated dynamically currently. So we do not allow to - * reconfigure if either has been enabled - */ - if (csi2->contexts[0].enabled || csi2->ctrl.if_enable) - return -EBUSY; - - pad = media_entity_remote_source(&csi2->pads[CSI2_PAD_SINK]); - sensor = media_entity_to_v4l2_subdev(pad->entity); - pdata = sensor->host_priv; - - csi2->frame_skip = 0; - v4l2_subdev_call(sensor, sensor, g_skip_frames, &csi2->frame_skip); - - csi2->ctrl.vp_out_ctrl = pdata->bus.csi2.vpclk_div; - csi2->ctrl.frame_mode = ISP_CSI2_FRAME_IMMEDIATE; - csi2->ctrl.ecc_enable = pdata->bus.csi2.crc; - - timing->ionum = 1; - timing->force_rx_mode = 1; - timing->stop_state_16x = 1; - timing->stop_state_4x = 1; - timing->stop_state_counter = 0x1FF; - - /* - * The CSI2 receiver can't do any format conversion except DPCM - * decompression, so every set_format call configures both pads - * and enables DPCM decompression as a special case: - */ - if (csi2->formats[CSI2_PAD_SINK].code != - csi2->formats[CSI2_PAD_SOURCE].code) - csi2->dpcm_decompress = true; - else - csi2->dpcm_decompress = false; - - csi2->contexts[0].format_id = csi2_ctx_map_format(csi2); - - if (csi2->video_out.bpl_padding == 0) - csi2->contexts[0].data_offset = 0; - else - csi2->contexts[0].data_offset = csi2->video_out.bpl_value; - - /* - * Enable end of frame and end of line signals generation for - * context 0. These signals are generated from CSI2 receiver to - * qualify the last pixel of a frame and the last pixel of a line. - * Without enabling the signals CSI2 receiver writes data to memory - * beyond buffer size and/or data line offset is not handled correctly. - */ - csi2->contexts[0].eof_enabled = 1; - csi2->contexts[0].eol_enabled = 1; - - csi2_irq_complexio1_set(isp, csi2, 1); - csi2_irq_ctx_set(isp, csi2, 1); - csi2_irq_status_set(isp, csi2, 1); - - /* Set configuration (timings, format and links) */ - csi2_timing_config(isp, csi2, timing); - csi2_recv_config(isp, csi2, &csi2->ctrl); - csi2_ctx_config(isp, csi2, &csi2->contexts[0]); - - return 0; -} - -/* - * csi2_print_status - Prints CSI2 debug information. - */ -#define CSI2_PRINT_REGISTER(isp, regs, name)\ - dev_dbg(isp->dev, "###CSI2 " #name "=0x%08x\n", \ - isp_reg_readl(isp, regs, ISPCSI2_##name)) - -static void csi2_print_status(struct isp_csi2_device *csi2) -{ - struct isp_device *isp = csi2->isp; - - if (!csi2->available) - return; - - dev_dbg(isp->dev, "-------------CSI2 Register dump-------------\n"); - - CSI2_PRINT_REGISTER(isp, csi2->regs1, SYSCONFIG); - CSI2_PRINT_REGISTER(isp, csi2->regs1, SYSSTATUS); - CSI2_PRINT_REGISTER(isp, csi2->regs1, IRQENABLE); - CSI2_PRINT_REGISTER(isp, csi2->regs1, IRQSTATUS); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTRL); - CSI2_PRINT_REGISTER(isp, csi2->regs1, DBG_H); - CSI2_PRINT_REGISTER(isp, csi2->regs1, GNQ); - CSI2_PRINT_REGISTER(isp, csi2->regs1, PHY_CFG); - CSI2_PRINT_REGISTER(isp, csi2->regs1, PHY_IRQSTATUS); - CSI2_PRINT_REGISTER(isp, csi2->regs1, SHORT_PACKET); - CSI2_PRINT_REGISTER(isp, csi2->regs1, PHY_IRQENABLE); - CSI2_PRINT_REGISTER(isp, csi2->regs1, DBG_P); - CSI2_PRINT_REGISTER(isp, csi2->regs1, TIMING); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_CTRL1(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_CTRL2(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_DAT_OFST(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_DAT_PING_ADDR(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_DAT_PONG_ADDR(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_IRQENABLE(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_IRQSTATUS(0)); - CSI2_PRINT_REGISTER(isp, csi2->regs1, CTX_CTRL3(0)); - - dev_dbg(isp->dev, "--------------------------------------------\n"); -} - -/* ----------------------------------------------------------------------------- - * Interrupt handling - */ - -/* - * csi2_isr_buffer - Does buffer handling at end-of-frame - * when writing to memory. - */ -static void csi2_isr_buffer(struct isp_csi2_device *csi2) -{ - struct isp_device *isp = csi2->isp; - struct isp_buffer *buffer; - - csi2_ctx_enable(isp, csi2, 0, 0); - - buffer = omap3isp_video_buffer_next(&csi2->video_out); - - /* - * Let video queue operation restart engine if there is an underrun - * condition. - */ - if (buffer == NULL) - return; - - csi2_set_outaddr(csi2, buffer->isp_addr); - csi2_ctx_enable(isp, csi2, 0, 1); -} - -static void csi2_isr_ctx(struct isp_csi2_device *csi2, - struct isp_csi2_ctx_cfg *ctx) -{ - struct isp_device *isp = csi2->isp; - unsigned int n = ctx->ctxnum; - u32 status; - - status = isp_reg_readl(isp, csi2->regs1, ISPCSI2_CTX_IRQSTATUS(n)); - isp_reg_writel(isp, status, csi2->regs1, ISPCSI2_CTX_IRQSTATUS(n)); - - if (!(status & ISPCSI2_CTX_IRQSTATUS_FE_IRQ)) - return; - - /* Skip interrupts until we reach the frame skip count. The CSI2 will be - * automatically disabled, as the frame skip count has been programmed - * in the CSI2_CTx_CTRL1::COUNT field, so reenable it. - * - * It would have been nice to rely on the FRAME_NUMBER interrupt instead - * but it turned out that the interrupt is only generated when the CSI2 - * writes to memory (the CSI2_CTx_CTRL1::COUNT field is decreased - * correctly and reaches 0 when data is forwarded to the video port only - * but no interrupt arrives). Maybe a CSI2 hardware bug. - */ - if (csi2->frame_skip) { - csi2->frame_skip--; - if (csi2->frame_skip == 0) { - ctx->format_id = csi2_ctx_map_format(csi2); - csi2_ctx_config(isp, csi2, ctx); - csi2_ctx_enable(isp, csi2, n, 1); - } - return; - } - - if (csi2->output & CSI2_OUTPUT_MEMORY) - csi2_isr_buffer(csi2); -} - -/* - * omap3isp_csi2_isr - CSI2 interrupt handling. - */ -void omap3isp_csi2_isr(struct isp_csi2_device *csi2) -{ - struct isp_pipeline *pipe = to_isp_pipeline(&csi2->subdev.entity); - u32 csi2_irqstatus, cpxio1_irqstatus; - struct isp_device *isp = csi2->isp; - - if (!csi2->available) - return; - - csi2_irqstatus = isp_reg_readl(isp, csi2->regs1, ISPCSI2_IRQSTATUS); - isp_reg_writel(isp, csi2_irqstatus, csi2->regs1, ISPCSI2_IRQSTATUS); - - /* Failure Cases */ - if (csi2_irqstatus & ISPCSI2_IRQSTATUS_COMPLEXIO1_ERR_IRQ) { - cpxio1_irqstatus = isp_reg_readl(isp, csi2->regs1, - ISPCSI2_PHY_IRQSTATUS); - isp_reg_writel(isp, cpxio1_irqstatus, - csi2->regs1, ISPCSI2_PHY_IRQSTATUS); - dev_dbg(isp->dev, "CSI2: ComplexIO Error IRQ " - "%x\n", cpxio1_irqstatus); - pipe->error = true; - } - - if (csi2_irqstatus & (ISPCSI2_IRQSTATUS_OCP_ERR_IRQ | - ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ | - ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ | - ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ | - ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ)) { - dev_dbg(isp->dev, "CSI2 Err:" - " OCP:%d," - " Short_pack:%d," - " ECC:%d," - " CPXIO2:%d," - " FIFO_OVF:%d," - "\n", - (csi2_irqstatus & - ISPCSI2_IRQSTATUS_OCP_ERR_IRQ) ? 1 : 0, - (csi2_irqstatus & - ISPCSI2_IRQSTATUS_SHORT_PACKET_IRQ) ? 1 : 0, - (csi2_irqstatus & - ISPCSI2_IRQSTATUS_ECC_NO_CORRECTION_IRQ) ? 1 : 0, - (csi2_irqstatus & - ISPCSI2_IRQSTATUS_COMPLEXIO2_ERR_IRQ) ? 1 : 0, - (csi2_irqstatus & - ISPCSI2_IRQSTATUS_FIFO_OVF_IRQ) ? 1 : 0); - pipe->error = true; - } - - if (omap3isp_module_sync_is_stopping(&csi2->wait, &csi2->stopping)) - return; - - /* Successful cases */ - if (csi2_irqstatus & ISPCSI2_IRQSTATUS_CONTEXT(0)) - csi2_isr_ctx(csi2, &csi2->contexts[0]); - - if (csi2_irqstatus & ISPCSI2_IRQSTATUS_ECC_CORRECTION_IRQ) - dev_dbg(isp->dev, "CSI2: ECC correction done\n"); -} - -/* ----------------------------------------------------------------------------- - * ISP video operations - */ - -/* - * csi2_queue - Queues the first buffer when using memory output - * @video: The video node - * @buffer: buffer to queue - */ -static int csi2_queue(struct isp_video *video, struct isp_buffer *buffer) -{ - struct isp_device *isp = video->isp; - struct isp_csi2_device *csi2 = &isp->isp_csi2a; - - csi2_set_outaddr(csi2, buffer->isp_addr); - - /* - * If streaming was enabled before there was a buffer queued - * or underrun happened in the ISR, the hardware was not enabled - * and DMA queue flag ISP_VIDEO_DMAQUEUE_UNDERRUN is still set. - * Enable it now. - */ - if (csi2->video_out.dmaqueue_flags & ISP_VIDEO_DMAQUEUE_UNDERRUN) { - /* Enable / disable context 0 and IRQs */ - csi2_if_enable(isp, csi2, 1); - csi2_ctx_enable(isp, csi2, 0, 1); - isp_video_dmaqueue_flags_clr(&csi2->video_out); - } - - return 0; -} - -static const struct isp_video_operations csi2_ispvideo_ops = { - .queue = csi2_queue, -}; - -/* ----------------------------------------------------------------------------- - * V4L2 subdev operations - */ - -static struct v4l2_mbus_framefmt * -__csi2_get_format(struct isp_csi2_device *csi2, struct v4l2_subdev_fh *fh, - unsigned int pad, enum v4l2_subdev_format_whence which) -{ - if (which == V4L2_SUBDEV_FORMAT_TRY) - return v4l2_subdev_get_try_format(fh, pad); - else - return &csi2->formats[pad]; -} - -static void -csi2_try_format(struct isp_csi2_device *csi2, struct v4l2_subdev_fh *fh, - unsigned int pad, struct v4l2_mbus_framefmt *fmt, - enum v4l2_subdev_format_whence which) -{ - enum v4l2_mbus_pixelcode pixelcode; - struct v4l2_mbus_framefmt *format; - const struct isp_format_info *info; - unsigned int i; - - switch (pad) { - case CSI2_PAD_SINK: - /* Clamp the width and height to valid range (1-8191). */ - for (i = 0; i < ARRAY_SIZE(csi2_input_fmts); i++) { - if (fmt->code == csi2_input_fmts[i]) - break; - } - - /* If not found, use SGRBG10 as default */ - if (i >= ARRAY_SIZE(csi2_input_fmts)) - fmt->code = V4L2_MBUS_FMT_SGRBG10_1X10; - - fmt->width = clamp_t(u32, fmt->width, 1, 8191); - fmt->height = clamp_t(u32, fmt->height, 1, 8191); - break; - - case CSI2_PAD_SOURCE: - /* Source format same as sink format, except for DPCM - * compression. - */ - pixelcode = fmt->code; - format = __csi2_get_format(csi2, fh, CSI2_PAD_SINK, which); - memcpy(fmt, format, sizeof(*fmt)); - - /* - * Only Allow DPCM decompression, and check that the - * pattern is preserved - */ - info = omap3isp_video_format_info(fmt->code); - if (info->uncompressed == pixelcode) - fmt->code = pixelcode; - break; - } - - /* RGB, non-interlaced */ - fmt->colorspace = V4L2_COLORSPACE_SRGB; - fmt->field = V4L2_FIELD_NONE; -} - -/* - * csi2_enum_mbus_code - Handle pixel format enumeration - * @sd : pointer to v4l2 subdev structure - * @fh : V4L2 subdev file handle - * @code : pointer to v4l2_subdev_mbus_code_enum structure - * return -EINVAL or zero on success - */ -static int csi2_enum_mbus_code(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_mbus_code_enum *code) -{ - struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - const struct isp_format_info *info; - - if (code->pad == CSI2_PAD_SINK) { - if (code->index >= ARRAY_SIZE(csi2_input_fmts)) - return -EINVAL; - - code->code = csi2_input_fmts[code->index]; - } else { - format = __csi2_get_format(csi2, fh, CSI2_PAD_SINK, - V4L2_SUBDEV_FORMAT_TRY); - switch (code->index) { - case 0: - /* Passthrough sink pad code */ - code->code = format->code; - break; - case 1: - /* Uncompressed code */ - info = omap3isp_video_format_info(format->code); - if (info->uncompressed == format->code) - return -EINVAL; - - code->code = info->uncompressed; - break; - default: - return -EINVAL; - } - } - - return 0; -} - -static int csi2_enum_frame_size(struct v4l2_subdev *sd, - struct v4l2_subdev_fh *fh, - struct v4l2_subdev_frame_size_enum *fse) -{ - struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt format; - - if (fse->index != 0) - return -EINVAL; - - format.code = fse->code; - format.width = 1; - format.height = 1; - csi2_try_format(csi2, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); - fse->min_width = format.width; - fse->min_height = format.height; - - if (format.code != fse->code) - return -EINVAL; - - format.code = fse->code; - format.width = -1; - format.height = -1; - csi2_try_format(csi2, fh, fse->pad, &format, V4L2_SUBDEV_FORMAT_TRY); - fse->max_width = format.width; - fse->max_height = format.height; - - return 0; -} - -/* - * csi2_get_format - Handle get format by pads subdev method - * @sd : pointer to v4l2 subdev structure - * @fh : V4L2 subdev file handle - * @fmt: pointer to v4l2 subdev format structure - * return -EINVAL or zero on success - */ -static int csi2_get_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - - format = __csi2_get_format(csi2, fh, fmt->pad, fmt->which); - if (format == NULL) - return -EINVAL; - - fmt->format = *format; - return 0; -} - -/* - * csi2_set_format - Handle set format by pads subdev method - * @sd : pointer to v4l2 subdev structure - * @fh : V4L2 subdev file handle - * @fmt: pointer to v4l2 subdev format structure - * return -EINVAL or zero on success - */ -static int csi2_set_format(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh, - struct v4l2_subdev_format *fmt) -{ - struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd); - struct v4l2_mbus_framefmt *format; - - format = __csi2_get_format(csi2, fh, fmt->pad, fmt->which); - if (format == NULL) - return -EINVAL; - - csi2_try_format(csi2, fh, fmt->pad, &fmt->format, fmt->which); - *format = fmt->format; - - /* Propagate the format from sink to source */ - if (fmt->pad == CSI2_PAD_SINK) { - format = __csi2_get_format(csi2, fh, CSI2_PAD_SOURCE, - fmt->which); - *format = fmt->format; - csi2_try_format(csi2, fh, CSI2_PAD_SOURCE, format, fmt->which); - } - - return 0; -} - -/* - * csi2_init_formats - Initialize formats on all pads - * @sd: ISP CSI2 V4L2 subdevice - * @fh: V4L2 subdev file handle - * - * Initialize all pad formats with default values. If fh is not NULL, try - * formats are initialized on the file handle. Otherwise active formats are - * initialized on the device. - */ -static int csi2_init_formats(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) -{ - struct v4l2_subdev_format format; - - memset(&format, 0, sizeof(format)); - format.pad = CSI2_PAD_SINK; - format.which = fh ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; - format.format.code = V4L2_MBUS_FMT_SGRBG10_1X10; - format.format.width = 4096; - format.format.height = 4096; - csi2_set_format(sd, fh, &format); - - return 0; -} - -/* - * csi2_set_stream - Enable/Disable streaming on the CSI2 module - * @sd: ISP CSI2 V4L2 subdevice - * @enable: ISP pipeline stream state - * - * Return 0 on success or a negative error code otherwise. - */ -static int csi2_set_stream(struct v4l2_subdev *sd, int enable) -{ - struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd); - struct isp_device *isp = csi2->isp; - struct isp_video *video_out = &csi2->video_out; - - switch (enable) { - case ISP_PIPELINE_STREAM_CONTINUOUS: - if (omap3isp_csiphy_acquire(csi2->phy) < 0) - return -ENODEV; - if (csi2->output & CSI2_OUTPUT_MEMORY) - omap3isp_sbl_enable(isp, OMAP3_ISP_SBL_CSI2A_WRITE); - csi2_configure(csi2); - csi2_print_status(csi2); - - /* - * When outputting to memory with no buffer available, let the - * buffer queue handler start the hardware. A DMA queue flag - * ISP_VIDEO_DMAQUEUE_QUEUED will be set as soon as there is - * a buffer available. - */ - if (csi2->output & CSI2_OUTPUT_MEMORY && - !(video_out->dmaqueue_flags & ISP_VIDEO_DMAQUEUE_QUEUED)) - break; - /* Enable context 0 and IRQs */ - atomic_set(&csi2->stopping, 0); - csi2_ctx_enable(isp, csi2, 0, 1); - csi2_if_enable(isp, csi2, 1); - isp_video_dmaqueue_flags_clr(video_out); - break; - - case ISP_PIPELINE_STREAM_STOPPED: - if (csi2->state == ISP_PIPELINE_STREAM_STOPPED) - return 0; - if (omap3isp_module_sync_idle(&sd->entity, &csi2->wait, - &csi2->stopping)) - dev_dbg(isp->dev, "%s: module stop timeout.\n", - sd->name); - csi2_ctx_enable(isp, csi2, 0, 0); - csi2_if_enable(isp, csi2, 0); - csi2_irq_ctx_set(isp, csi2, 0); - omap3isp_csiphy_release(csi2->phy); - isp_video_dmaqueue_flags_clr(video_out); - omap3isp_sbl_disable(isp, OMAP3_ISP_SBL_CSI2A_WRITE); - break; - } - - csi2->state = enable; - return 0; -} - -/* subdev video operations */ -static const struct v4l2_subdev_video_ops csi2_video_ops = { - .s_stream = csi2_set_stream, -}; - -/* subdev pad operations */ -static const struct v4l2_subdev_pad_ops csi2_pad_ops = { - .enum_mbus_code = csi2_enum_mbus_code, - .enum_frame_size = csi2_enum_frame_size, - .get_fmt = csi2_get_format, - .set_fmt = csi2_set_format, -}; - -/* subdev operations */ -static const struct v4l2_subdev_ops csi2_ops = { - .video = &csi2_video_ops, - .pad = &csi2_pad_ops, -}; - -/* subdev internal operations */ -static const struct v4l2_subdev_internal_ops csi2_internal_ops = { - .open = csi2_init_formats, -}; - -/* ----------------------------------------------------------------------------- - * Media entity operations - */ - -/* - * csi2_link_setup - Setup CSI2 connections. - * @entity : Pointer to media entity structure - * @local : Pointer to local pad array - * @remote : Pointer to remote pad array - * @flags : Link flags - * return -EINVAL or zero on success - */ -static int csi2_link_setup(struct media_entity *entity, - const struct media_pad *local, - const struct media_pad *remote, u32 flags) -{ - struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity); - struct isp_csi2_device *csi2 = v4l2_get_subdevdata(sd); - struct isp_csi2_ctrl_cfg *ctrl = &csi2->ctrl; - - /* - * The ISP core doesn't support pipelines with multiple video outputs. - * Revisit this when it will be implemented, and return -EBUSY for now. - */ - - switch (local->index | media_entity_type(remote->entity)) { - case CSI2_PAD_SOURCE | MEDIA_ENT_T_DEVNODE: - if (flags & MEDIA_LNK_FL_ENABLED) { - if (csi2->output & ~CSI2_OUTPUT_MEMORY) - return -EBUSY; - csi2->output |= CSI2_OUTPUT_MEMORY; - } else { - csi2->output &= ~CSI2_OUTPUT_MEMORY; - } - break; - - case CSI2_PAD_SOURCE | MEDIA_ENT_T_V4L2_SUBDEV: - if (flags & MEDIA_LNK_FL_ENABLED) { - if (csi2->output & ~CSI2_OUTPUT_CCDC) - return -EBUSY; - csi2->output |= CSI2_OUTPUT_CCDC; - } else { - csi2->output &= ~CSI2_OUTPUT_CCDC; - } - break; - - default: - /* Link from camera to CSI2 is fixed... */ - return -EINVAL; - } - - ctrl->vp_only_enable = - (csi2->output & CSI2_OUTPUT_MEMORY) ? false : true; - ctrl->vp_clk_enable = !!(csi2->output & CSI2_OUTPUT_CCDC); - - return 0; -} - -/* media operations */ -static const struct media_entity_operations csi2_media_ops = { - .link_setup = csi2_link_setup, - .link_validate = v4l2_subdev_link_validate, -}; - -void omap3isp_csi2_unregister_entities(struct isp_csi2_device *csi2) -{ - v4l2_device_unregister_subdev(&csi2->subdev); - omap3isp_video_unregister(&csi2->video_out); -} - -int omap3isp_csi2_register_entities(struct isp_csi2_device *csi2, - struct v4l2_device *vdev) -{ - int ret; - - /* Register the subdev and video nodes. */ - ret = v4l2_device_register_subdev(vdev, &csi2->subdev); - if (ret < 0) - goto error; - - ret = omap3isp_video_register(&csi2->video_out, vdev); - if (ret < 0) - goto error; - - return 0; - -error: - omap3isp_csi2_unregister_entities(csi2); - return ret; -} - -/* ----------------------------------------------------------------------------- - * ISP CSI2 initialisation and cleanup - */ - -/* - * csi2_init_entities - Initialize subdev and media entity. - * @csi2: Pointer to csi2 structure. - * return -ENOMEM or zero on success - */ -static int csi2_init_entities(struct isp_csi2_device *csi2) -{ - struct v4l2_subdev *sd = &csi2->subdev; - struct media_pad *pads = csi2->pads; - struct media_entity *me = &sd->entity; - int ret; - - v4l2_subdev_init(sd, &csi2_ops); - sd->internal_ops = &csi2_internal_ops; - strlcpy(sd->name, "OMAP3 ISP CSI2a", sizeof(sd->name)); - - sd->grp_id = 1 << 16; /* group ID for isp subdevs */ - v4l2_set_subdevdata(sd, csi2); - sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; - - pads[CSI2_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE; - pads[CSI2_PAD_SINK].flags = MEDIA_PAD_FL_SINK; - - me->ops = &csi2_media_ops; - ret = media_entity_init(me, CSI2_PADS_NUM, pads, 0); - if (ret < 0) - return ret; - - csi2_init_formats(sd, NULL); - - /* Video device node */ - csi2->video_out.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - csi2->video_out.ops = &csi2_ispvideo_ops; - csi2->video_out.bpl_alignment = 32; - csi2->video_out.bpl_zero_padding = 1; - csi2->video_out.bpl_max = 0x1ffe0; - csi2->video_out.isp = csi2->isp; - csi2->video_out.capture_mem = PAGE_ALIGN(4096 * 4096) * 3; - - ret = omap3isp_video_init(&csi2->video_out, "CSI2a"); - if (ret < 0) - goto error_video; - - /* Connect the CSI2 subdev to the video node. */ - ret = media_entity_create_link(&csi2->subdev.entity, CSI2_PAD_SOURCE, - &csi2->video_out.video.entity, 0, 0); - if (ret < 0) - goto error_link; - - return 0; - -error_link: - omap3isp_video_cleanup(&csi2->video_out); -error_video: - media_entity_cleanup(&csi2->subdev.entity); - return ret; -} - -/* - * omap3isp_csi2_init - Routine for module driver init - */ -int omap3isp_csi2_init(struct isp_device *isp) -{ - struct isp_csi2_device *csi2a = &isp->isp_csi2a; - struct isp_csi2_device *csi2c = &isp->isp_csi2c; - int ret; - - csi2a->isp = isp; - csi2a->available = 1; - csi2a->regs1 = OMAP3_ISP_IOMEM_CSI2A_REGS1; - csi2a->regs2 = OMAP3_ISP_IOMEM_CSI2A_REGS2; - csi2a->phy = &isp->isp_csiphy2; - csi2a->state = ISP_PIPELINE_STREAM_STOPPED; - init_waitqueue_head(&csi2a->wait); - - ret = csi2_init_entities(csi2a); - if (ret < 0) - return ret; - - if (isp->revision == ISP_REVISION_15_0) { - csi2c->isp = isp; - csi2c->available = 1; - csi2c->regs1 = OMAP3_ISP_IOMEM_CSI2C_REGS1; - csi2c->regs2 = OMAP3_ISP_IOMEM_CSI2C_REGS2; - csi2c->phy = &isp->isp_csiphy1; - csi2c->state = ISP_PIPELINE_STREAM_STOPPED; - init_waitqueue_head(&csi2c->wait); - } - - return 0; -} - -/* - * omap3isp_csi2_cleanup - Routine for module driver cleanup - */ -void omap3isp_csi2_cleanup(struct isp_device *isp) -{ - struct isp_csi2_device *csi2a = &isp->isp_csi2a; - - omap3isp_video_cleanup(&csi2a->video_out); - media_entity_cleanup(&csi2a->subdev.entity); -} |